On this Picostat.com statistics page, you will find information about the WorldPhones data set which pertains to The World's Telephones. The WorldPhones data set is found in the datasets R package. You can load the WorldPhones data set in R by issuing the following command at the console data("WorldPhones"). This will load the data into a variable called WorldPhones. If R says the WorldPhones data set is not found, you can try installing the package by issuing this command install.packages("datasets") and then attempt to reload the data. If you need to download R, you can go to the R project website. You can download a CSV (comma separated values) version of the WorldPhones R data set. The size of this file is about 316 bytes.

The World's Telephones

Description

The number of telephones in various regions of the world (in thousands).

Usage

WorldPhones

Format

A matrix with 7 rows and 8 columns. The columns of the matrix give the figures for a given region, and the rows the figures for a year.

The regions are: North America, Europe, Asia, South America, Oceania, Africa, Central America.

The years are: 1951, 1956, 1957, 1958, 1959, 1960, 1961.

Source

AT&T (1961) The World's Telephones.

References

McNeil, D. R. (1977) Interactive Data Analysis. New York: Wiley.

Examples

require(graphics)
matplot(rownames(WorldPhones), WorldPhones, type = "b", log = "y",
        xlab = "Year", ylab = "Number of telephones (1000's)")
legend(1951.5, 80000, colnames(WorldPhones), col = 1:6, lty = 1:5,
       pch = rep(21, 7))
title(main = "World phones data: log scale for response")

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Dataset imported from https://www.r-project.org.